GDAX Pocket UI

Simple Pocket UI built on top of the https://github.com/coinbase/gdax-node GDAX API library, that allows you to use GDAX API's credentials for "Manual Trades On The Go".

First iteration of this application is limited to Ethereum account, but can easily be extended over to Bitcoin and other Cryptocurrencies available on Coinbase and GDAX.

For security purposes, functionality is limited to:

• Viewing account balances

• Placing Sell/Buy limit orders

• Canceling active orders

Note: For security purposes I highly recommend not to host this application on a server that is open to general public. Close it off to your local network and access it remotely only through secure VPN connection. You can find basing instructions on how to set up your personal VPN server in my article: https://blog.rinatussenov.com/personal-private-vpn-server-979cc9f0abaa

Tech Stack

UI part of this application is built purely with VanillaJS without any 3rd party libraries (except socket.io for the price-ticker).

Babel is used for transpilation, RollupJS for bundling and Jest for testing.

Server is running with ExpressJS which is an overkill and will be replaced in the future.

Running GDAX Pocket UI

Prerequisites

• NodeJS 8.x or higher

• NVM

• ForeverJS (Global dependency)

• Yarn

For security purposes, in order to run this application and access it over secure HTTPS you will have to create a self-signed certificate. It will trigger site-identity warning in browsers, but since it's a private application that is not designed to be open for general public, you can ignore this warning, the connection will still be secure.

Navigage to the encryption/ directory and run this command:

openssl req -new -newkey rsa:2048 -nodes -out mydomain.csr -keyout private.key

After following the instructions, it will generate private.key which we can now use to create our self-signed certificate using this command:

openssl x509 -req -days 365 -in mydomain.csr -signkey private.key -out server.crt

This command has generated the certificate that later will be used by /server.js

Setting up the environment

Most of the sensitive account data is taken from the environment this application runs in. To set up your environment take a look at the /.env_example file for all required environment names. To run it locally cp .env_example file to .env and populate all black fields.

You can get all requred API keys from from your active GDAX account: https://www.gdax.com/settings/api.

Adding Users

This application is using Basic HTTP Auth for authentication. In order to add users, you need to edit /users.config.js

Note: In this iteration all passwords are stored in plain text, which is a security flaw, be aware of it and account for it. it will change in the future when safe password generator is added.

GDAX Pocket UI supports 2 types of users, admin and guuest. All application features are available for admin users, active trading functionality is disabled for guest users.

Admin user example:

{
    username: 'admin',
    password: 'admin for gdax pocket ui',
    level: 'admin'
}

Guest user example:

{
    username: 'guest',
    password: 'guest account',
    level: 'guest'
}

Running the app in development mode

Install dependencies:

yarn

Build the application:

yarn build:watch

In a separate Terminal tab run application server:

yarn start:dev

Running the app in production

Build the application:

yarn build

Run application server:

yarn start:prod

Stop application server:

yarn stop:prod

Restart application server:

yarn restart:prod

GDAX Pocket UI is accessible on port :4999 on your local/remote server.